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<h1>navo/algorithm/hash/string/bp.h</h1>  </div>
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<a href="bp_8h.html">浏览该文件的文档。</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */</span>
<a name="l00011"></a>00011 <span class="preprocessor">#ifdef _MSC_VER</span>
<a name="l00012"></a>00012 <span class="preprocessor"></span><span class="preprocessor">#pragma once</span>
<a name="l00013"></a>00013 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* #ifdef _MSC_VER */</span>
<a name="l00014"></a>00014 
<a name="l00015"></a>00015 <span class="preprocessor">#ifndef __NV_BP__</span>
<a name="l00016"></a>00016 <span class="preprocessor"></span><span class="preprocessor">#define __NV_BP__</span>
<a name="l00017"></a>00017 <span class="preprocessor"></span>
<a name="l00018"></a>00018 <span class="preprocessor">#include &quot;<a class="code" href="cdef_8h.html" title="Definitions and declarations for common constants, types, variables.">../../../port/cdef.h</a>&quot;</span>
<a name="l00019"></a>00019 <span class="preprocessor">#include &quot;<a class="code" href="integer_8h.html" title="Provides standard integer types.">../../../port/integer.h</a>&quot;</span>
<a name="l00020"></a>00020 <span class="preprocessor">#include &quot;<a class="code" href="endian_8h.html" title="Definitions for byte order.">../../../port/endian.h</a>&quot;</span>
<a name="l00021"></a>00021 
<a name="l00022"></a>00022 <span class="preprocessor">#ifdef __cplusplus</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">&quot;C&quot;</span> {
<a name="l00024"></a>00024 <span class="preprocessor">#endif </span><span class="comment">/* #ifdef __cplusplus */</span>
<a name="l00025"></a>00025 
<a name="l00036"></a><a class="code" href="structbp__ctx.html">00036</a> <span class="keyword">typedef</span> <span class="keyword">struct </span>{
<a name="l00038"></a><a class="code" href="structbp__ctx.html#a11ecb029164e055f28f4123ce3748862">00038</a>     uint32_t <a class="code" href="structbp__ctx.html#a11ecb029164e055f28f4123ce3748862" title="哈希值">hash</a>;
<a name="l00039"></a>00039 }<a class="code" href="structbp__ctx.html" title="BP哈希上下文">bp_ctx</a>;
<a name="l00040"></a>00040 
<a name="l00045"></a><a class="code" href="group__BP.html#ga4771b0b27307350b2fcd5378e144a2f4">00045</a> <span class="preprocessor">#define BP_CTX(name) bp_ctx name = {0}</span>
<a name="l00046"></a>00046 <span class="preprocessor"></span>
<a name="l00052"></a><a class="code" href="group__BP.html#gaf9ef67cf35dd460379d1c7196980cc9c">00052</a> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="group__BP.html#gaf9ef67cf35dd460379d1c7196980cc9c" title="初始化BP上下文">bp_init</a>(<a class="code" href="structbp__ctx.html" title="BP哈希上下文">bp_ctx</a>* ctx)
<a name="l00053"></a>00053 {
<a name="l00054"></a>00054     ctx-&gt;<a class="code" href="structbp__ctx.html#a11ecb029164e055f28f4123ce3748862" title="哈希值">hash</a> = 0;
<a name="l00055"></a>00055 }
<a name="l00056"></a>00056 
<a name="l00057"></a>00057 NV_API <span class="keywordtype">void</span> __bp_update(<a class="code" href="structbp__ctx.html" title="BP哈希上下文">bp_ctx</a>* ctx, <a class="code" href="group___xE6_x95_xB4_xE5_x9E_x8B_xE5_xAE_x9A_xE4_xB9_x89.html#gae1affc9ca37cfb624959c866a73f83c2" title="8比特无符号整型">uint8_t</a>* buf, <span class="keywordtype">size_t</span> cnt);
<a name="l00058"></a>00058 
<a name="l00080"></a><a class="code" href="group__BP.html#ga308bf5968608026d18b3e5c7a15d0a57">00080</a> <span class="preprocessor">#define bp_update(ctx, buf, cnt) __bp_update(ctx, (uint8_t*)(buf), cnt)</span>
<a name="l00081"></a>00081 <span class="preprocessor"></span>
<a name="l00082"></a>00082 <span class="keyword">static</span> <span class="keyword">inline</span> uint32_t __bp_final(<a class="code" href="structbp__ctx.html" title="BP哈希上下文">bp_ctx</a>* ctx, uint32_t hash)
<a name="l00083"></a>00083 {
<a name="l00084"></a>00084     ctx-&gt;<a class="code" href="structbp__ctx.html#a11ecb029164e055f28f4123ce3748862" title="哈希值">hash</a> = 0;
<a name="l00085"></a>00085     <span class="keywordflow">return</span> __cpu_to_le32(hash);
<a name="l00086"></a>00086 }
<a name="l00087"></a>00087 
<a name="l00095"></a><a class="code" href="group__BP.html#gaf949a37e869e47fb33e069d7b14fa38a">00095</a> <span class="keyword">static</span> <span class="keyword">inline</span> uint32_t <a class="code" href="group__BP.html#gaf949a37e869e47fb33e069d7b14fa38a" title="获取BP校验值">bp_final</a>(<a class="code" href="structbp__ctx.html" title="BP哈希上下文">bp_ctx</a>* ctx)
<a name="l00096"></a>00096 {
<a name="l00097"></a>00097     <span class="keywordflow">return</span> __bp_final(ctx, ctx-&gt;<a class="code" href="structbp__ctx.html#a11ecb029164e055f28f4123ce3748862" title="哈希值">hash</a>);
<a name="l00098"></a>00098 }
<a name="l00099"></a>00099 
<a name="l00106"></a>00106 NV_API uint32_t <a class="code" href="group__BP.html#gae2f48f5b4b504f2a7797f994432cc04b" title="直接哈希字符串">bp_hash_nbstr</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* str);
<a name="l00107"></a>00107 
<a name="l00110"></a>00110 <span class="preprocessor">#ifdef __cplusplus</span>
<a name="l00111"></a>00111 <span class="preprocessor"></span>}
<a name="l00112"></a>00112 <span class="preprocessor">#endif </span><span class="comment">/* #ifdef __cplusplus */</span>
<a name="l00113"></a>00113 
<a name="l00114"></a>00114 <span class="preprocessor">#endif </span><span class="comment">/* #ifndef __NV_BP__ */</span>
<a name="l00115"></a>00115 
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